Cyclone velocity stack

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wistech · #11 Post by **wistech** » Fri Feb 06, 2009 8:40 pm

I dont have a pic of Boomers setup but it is nice for getting rid of the airbox. I have modded a few of his setups by boring out the bike stack that is in it but it is not easy but can be done. It a 50/50 chance of wrecking the stack. A bored out boomer system can get close to a cyclone in performance so dont count them out when its time for porting.

MyCannibal · #12 Post by **MyCannibal** » Sat Feb 07, 2009 1:28 am

ok...thats totally different than what I was thinking...but the boomer system does give a couple more horsies?...just cuz it's an open setup right?

wistech · #13 Post by **wistech** » Sat Feb 07, 2009 3:01 am

You bet . Going from an airbox to a pod filter is worth 2 horses right off the bat. I did a detailed dyno test of the quad stack verses the bike stack verses the ported bike stack and finally the cyclone. It was on Kara Corns motor thread a few years back. The cyclone made her 432 the first to break 50 horse.